A 25 foot cord will not cause enough voltage drop to worry about.
because the voltage likes to drop
The main disadvantage should be obvious - when the output voltage of the generator is used to provide field current to the generator....what happens if the output voltage sags? If the output voltage becomes depressed, the output power of the generator is compromised (becomes less and less), this in turn can cause the output to become more depressed, leading to an incrementally decreasing output capability. The main advantage is cost savings.
There are several causes that can cause a generator turbine system to lose power. The most common cause is a lack of fuel.
Results of Motorization of a GeneratorIf a generator loses prime mover power, it acts as a motor with a DC field on the rotorThe DC field will cause the rotor to try and follow the AC field in the same direction as beforeIf the mechanical drag on the rotor is heavy, it will fall behind and "slip poles,"inducing a large voltage into the rotor; this can cause insulation breakdown of the windings, flashover at the brushes, and violent shaking of the generator mountings.If a generator loses DC excitation to the rotor it will not generate, but the prime mover power will still turn the rotorNow the generator acts as a motor running at no load
The governor controls the speed of the power source rotating the generator. This has to be continually adjusted to match the load on the generator. As more load is switched on, the generator becomes harder to turn, this would cause the generator to slow down, unless the power unit is adjusted to increase power and correct the speed.
because the voltage likes to drop
If the wiring checks okay you may have a faulty generator or voltage regulator.
If the wiring checks okay you may have a faulty generator or voltage regulator.
The main disadvantage should be obvious - when the output voltage of the generator is used to provide field current to the generator....what happens if the output voltage sags? If the output voltage becomes depressed, the output power of the generator is compromised (becomes less and less), this in turn can cause the output to become more depressed, leading to an incrementally decreasing output capability. The main advantage is cost savings.
Using portable generators is a good idea in a power outage to prevent food from spoiling in the refrigerator and keep other necessary appliances functioning. Resist the temptation to overload your generator. You should not connect more appliances to the generator than is specified by the generator's output rating. Doing so can cause extensive damage to your appliances, so prioritize what you absolutely need and wait for the power to come back on for the rest.
Some questions to ask before purchasing a portable RV generator would include asking themselves whether the power output will fit the need, is it clean power or cause a lot of exhaust, is the generator light enough to carry to the top of the roof in some cases, and what is the running time on a full tank of fuel.
It is usually generated in a generator; read the Wikipedia article on "Generator" for more details. Briefly, this uses the physical principle that if a material is moved through a magnetic field, a voltage is generated. If such a material is a conductor, and appropriately connected, this voltage will cause an electrical current to flow.
In any DC generator the causes to fail to produce voltage is loss of residual flux in the field or fields , poor brush contact in the commutator(clean the brushes and commutator) , check all the terminals of the generator and voltmeter may not be functioningand lastly check the coupling and the prime mover is rotating.
There could be more than one cause, but the symptom suggests that the battery voltage is too low to hold the solenoid closed. If the battery voltage is high enough, then the cause may be inadequate grounding anywhere in the starting electrical circuit.
The AVR (automatic voltage regulator) can generally be set to maintain a constant output voltage or a constant power output. This device controls the field current; as field current increases, the back emf on the generator will cause it to slow down. At this point the generator's governor will open up some valves, increasing power to the prime mover (whatever is making the generator spin), which will keep the generator spinning at its' ideal speed. The exact opposite occurs when the field current is decreased. The AVR monitors terminal or system voltage, and makes decisions based on its' settings to ramp up, ramp down, or keep the field current constant.
Some possible clues: * Alternator/Generator not putting out enough voltage to properly charge system * Voltage regulator problems * Weak battery, or one that's about to give out totally
* Voltage Regulator * Defective Battery * Dirty Battery Post Connections * Alternator/Generator problems